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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2406.07839 |
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| _version_ | 1866913555649921024 |
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| author | Wang, En Geng, Li-Sheng Wu, Jia-Jun Xie, Ju-Jun Zou, Bing-Song |
| author_facet | Wang, En Geng, Li-Sheng Wu, Jia-Jun Xie, Ju-Jun Zou, Bing-Song |
| contents | Strong empirical and phenomenological indications exist for large sea-quark admixtures in the low-lying excited baryons. Investigating the low-lying excited baryon $Σ^*(1/2^-)$ is important to determine the nature of the low-lying excited baryons. We review the experimental and theoretical progress on the studies of the $Σ^*(1/2^-)$. Although several candidates have received intensive discussions, such as $Σ(1620)$ and $Σ(1480)$, their existence needs further confirmation. Following the prediction of the unquenched quark models for the $Σ^*(1/2^-)$, many theoretical works suggested the existence of these states in various processes. Future experimental measurements could shed light on the existence of the low-lying excited $Σ^*(1/2^-)$ state. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_07839 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Review of the low-lying excited baryons $Σ^*(1/2^-)$ Wang, En Geng, Li-Sheng Wu, Jia-Jun Xie, Ju-Jun Zou, Bing-Song High Energy Physics - Phenomenology Strong empirical and phenomenological indications exist for large sea-quark admixtures in the low-lying excited baryons. Investigating the low-lying excited baryon $Σ^*(1/2^-)$ is important to determine the nature of the low-lying excited baryons. We review the experimental and theoretical progress on the studies of the $Σ^*(1/2^-)$. Although several candidates have received intensive discussions, such as $Σ(1620)$ and $Σ(1480)$, their existence needs further confirmation. Following the prediction of the unquenched quark models for the $Σ^*(1/2^-)$, many theoretical works suggested the existence of these states in various processes. Future experimental measurements could shed light on the existence of the low-lying excited $Σ^*(1/2^-)$ state. |
| title | Review of the low-lying excited baryons $Σ^*(1/2^-)$ |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2406.07839 |